418921de89
- Reused contains() from utils.go at a couple of places - Cleanup in return statements and boolean checks
84 lines
2.6 KiB
Go
84 lines
2.6 KiB
Go
// +build !windows,!plan9
|
|
|
|
/*
|
|
* Minio Cloud Storage, (C) 2016 Minio, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"syscall"
|
|
|
|
"github.com/minio/minio/pkg/sys"
|
|
)
|
|
|
|
// For all unixes we need to bump allowed number of open files to a
|
|
// higher value than its usual default of '1024'. The reasoning is
|
|
// that this value is too small for a server.
|
|
func setMaxOpenFiles() error {
|
|
var rLimit syscall.Rlimit
|
|
err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Set the current limit to Max, it is usually around 4096.
|
|
// TO increase this limit further user has to manually edit
|
|
// `/etc/security/limits.conf`
|
|
rLimit.Cur = rLimit.Max
|
|
return syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
|
|
}
|
|
|
|
// Set max memory used by minio as a process, this value is usually
|
|
// set to 'unlimited' but we need to validate additionally to verify
|
|
// if any hard limit is set by the user, in such a scenario would need
|
|
// to reset the global max cache size to be 80% of the hardlimit set
|
|
// by the user. This is done to honor the system limits and not crash.
|
|
func setMaxMemory() error {
|
|
var rLimit syscall.Rlimit
|
|
err := syscall.Getrlimit(syscall.RLIMIT_AS, &rLimit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Set the current limit to Max, it is default 'unlimited'.
|
|
// TO decrease this limit further user has to manually edit
|
|
// `/etc/security/limits.conf`
|
|
rLimit.Cur = rLimit.Max
|
|
err = syscall.Setrlimit(syscall.RLIMIT_AS, &rLimit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = syscall.Getrlimit(syscall.RLIMIT_AS, &rLimit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Validate if rlimit memory is set to lower
|
|
// than max cache size. Then we should use such value.
|
|
if uint64(rLimit.Cur) < globalMaxCacheSize {
|
|
globalMaxCacheSize = (80 / 100) * uint64(rLimit.Cur)
|
|
}
|
|
|
|
// Make sure globalMaxCacheSize is less than RAM size.
|
|
stats, err := sys.GetStats()
|
|
if err != nil && err != sys.ErrNotImplemented {
|
|
// sys.GetStats() is implemented only on linux. Ignore errors
|
|
// from other OSes.
|
|
return err
|
|
}
|
|
if err == nil && stats.TotalRAM < globalMaxCacheSize {
|
|
globalMaxCacheSize = (80 / 100) * stats.TotalRAM
|
|
}
|
|
return nil
|
|
}
|